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Control.com topic...
Sensors
Topic: Software, including programming, OS issues, etc.
from the INSTRUMENTATION department...
UREA FLOW METER
Originally posted by Arun Kumar on 14 April, 2014 - 4:20 pm
What type of flowmeter can be installed in a Urea duct as a source of FD and ID fan in the duct?
New Replies:
What are you measuring? Just air flow? We use a DP transmitter for our prill tower air ducts....
Topic: Engineering and workplace issues.
from the Level Control department...
Magnetorestrictive Level Transmitter issues
Originally posted by Braindead on 26 March, 2013 - 11:46 pm
Extreme vibration and loss of signal on level transmitters
New Replies:
Hi Mateus, there is only one instrument when you are working offshore on a FPSO or Platform...
Topic: Sensor technologies.
from the Thermocouple department...
Thermocouple cable configuration
Originally posted by Shrk on 4 April, 2014 - 7:28 am
Choosing thermocouple cable configuration- twisted pair or coaxial (multi cored)
New Replies:
please note that T/C TYPE N lower cost compensated can be used depends up on your critical...
It is seldom ever a good idea to run un-twisted pair thermocouple extension wire. Thermocouple...
Shrk, www.omega.com is a very good resource for all kinds of sensors, particularly RTDs and...
Hi. Thanks. tried looking, did not get much info. Will certainly try again. Again, thanks...
You need to use thermocouple extension wire and thermocouple terminal blocks, having the same...
Topic: Communications systems and equipment.
from the Forum department...
8-bit data types in Modbus registers
Originally posted by Jay on 10 April, 2014 - 5:26 am
Are 8-bit data types obsolete for Modbus?
New Replies:
By Lynn August Linse on 14 April, 2014 - 10:39 am -
A bit of historical trivia... Modbus never had 8-bit data types. The original PLC were made back in...
> Since registers are always 16 bits, does it even make sense to provide data types of 8 bits...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Actuator indication and control
Originally posted by David Sutcliffe on 11 April, 2014 - 10:32 am
How to obtain indication and control from a Rotork actuator
New Replies:
Other types of actuators use two drive signals: - one signal drives the actuator 'open' - the...
please provide actuator model number and application...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Instrumentation cables sizing
Originally posted by Ahmed Sami on 10 April, 2014 - 7:57 am
Instrumentation cables sizing
New Replies:
Ahmed Sami, Choosing wire/cable for a particular application is a very involved process. Does...
Why do you sugget 1.5 mm2 cable? Does that follow any standards recommendation or calculations? ...
You Need at least 6x1.5mm (6 core cable)...
please note that for all your instrument devices you can use 3x1.5sqmm (3 core cable)....
Topic: Continuous process industries, DCS questions.
from the Forum department...
Condensate pots and flow measurement
Originally posted by Karthik on 12 April, 2014 - 3:36 am
Using condensate pots for flow measurements
New Replies:
1. The purpose of condensate pots in steam flow measurement is to isolate or seal the transmitter...
Topic: Sensor technologies.
from the maintenance department...
Process Switches NO NC definition
Originally posted by Normally on 19 August, 2011 - 7:12 pm
What "normally" means in process switches.
New Replies:
Dear Sir, Normally means then initial condition of any switch or relay without pressing or...
Topic: PLCs and related questions.
from the Forum department...
Flow Rate Calculations S7-1200
Posted by shahien on 10 April, 2014 - 3:40 am
Flow Rate Calculations S7-1200
Topic: The Business of Automation and Control
from the Investors department...
New Flow Measurement Method
Originally posted by Abdolazim Hasseli on 9 April, 2014 - 1:09 am
How to find an investor of instruments.
New Replies:
Abdolazim Hasseli... first get a reliable Patent Attorney! Do Not, repeat,...
Topic: Continuous process industries, DCS questions.
from the Forum department...
2oo3D voting
Originally posted by amanemisa on 8 April, 2014 - 3:54 am
Explain if 1oo2D voting is just similar to 2oo3 voting for ESD system.
New Replies:
Let's start with your requirement of tripping of valve on rise of line pressure beyond high limit....
Topic: Sensor technologies.
from the Density Measurement department...
Coriolis density measurement
Originally posted by Kirill St. on 3 July, 2012 - 8:53 am
Student project in coriolis density measurement.
New Replies:
If you can get it to flow, you can pump it through a Coriolis Mass Flow meter. This is the kind of...
By Avinash Bhargav on 7 April, 2014 - 2:44 am -
Dear Mr. JMW thanks for all the inputs. I have a query regarding the practical applications of such...
Topic: Sensor technologies.
from the Forum department...
Help me find a gear meter
Originally posted by Steve Myres on 25 March, 2014 - 10:18 pm
Looking for recommendations on a micro flowmeter application
New Replies:
Sorry for taking a while in getting back to this thread, but thanks to everyone for the responses! ...
Hi, Blancett from Badger Meter have a positive displacement flow meter for fluids over a wide...
By icenta Controls on 31 March, 2014 - 10:24 am -
Hi, you could consider the Flowmate series of micro flow meters as depicted at...
Topic: Sensor technologies.
from the Instrument department...
ABB Thermocouple Transmitter reading fluctuates
Originally posted by msalem73 on 29 March, 2014 - 6:42 am
Transmitters reading Fluctuating
New Replies:
6 different T/C transmitters with a 4 year history of proper operation which now fail-low...
you appear to be describing sensor failures, do you have details of the primary measurement and...
Okay, You answered some of the questions. Have you checked the thermocouples in the stack to...
first off all i am sorry for writing down transmitter model is ABB TH02. the answer of your...
Hi, I assume the TC's are directly connected to certain thermocouple module. 1-this problem...
msalem73, David asks MANY good questions. But perhaps the best question is: When did this...
check the resistance of the rtd's. you should be able to get a direct reading of the temperature...
1) What is an example of a 'good reading', for example, 215 Deg C? 2) What is an example of a...
Topic: Continuous process industries, DCS questions.
from the Applications department...
Non-Nuclear Density Meter For Slurry
Originally posted by Austin Bell on 24 April, 2012 - 2:27 pm
Does anybody know of a non-nuclear continuous in- line density meter for slurry?
New Replies:
Has anybody tried the DM3 by Sciam Engineering? Any reviews has changed. We have a Salt slurry...
Topic: Sensor technologies.
from the Forum department...
Square root extraction in DCS
Originally posted by oruam on 21 December, 2009 - 6:35 am
Square root extraction in DCS
New Replies:
By hemantkumar chauhan on 31 March, 2014 - 9:44 am -
Okay I am not your ones right or not.. but I have my own .. Let me explain it.. ...
Topic: Sensor technologies.
from the Instrumentation & Control department...
Liquid gas level measurement
Originally posted by Engineer92 on 27 March, 2014 - 2:52 am
Liquid Gas Level measurement
New Replies:
> But we noticed that when tank level is 15%, pressure is around 5 bar & when level is 50%,...
we were also thinking of using DP type level transmitter, top & bottom connections are also...
From the MDSS APPEARANCE: Clear, colorless liquid and vapor PHYSICAL STATE: Gas at ambient...
One would think a simple DP level transmitter should work, do you have top and bottom connections...
>Can you give us a few details? >Pressure, temperature, specific gravity Pressure varies...
Topic: Sensor technologies.
from the Very Low Pressure department...
Panel Pressure Transmitter
Originally posted by Paul Ganter on 17 March, 2014 - 2:37 am
I need to measure a very low pressure, not a DP.
New Replies:
I think a process pressure transmitter like a 3051 is way overkill Something like a blind...
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